baber/WOPTO huggingface dataset:
Patent NO-20110183-A1 (NO)
Title: Fremgangsmate for fremstilling av manganpellets fra ukalsinert manganmalm og agglomerat erholdt ved denne fremgangsmaten
Inventor: MAFRA WASHINGTON LUIZ
IPC: C22B1/24
Filed: 2011-02-02
Abstract: Produksjon av manganpelleter av ukalsinert manganmalm, omfattende følgende faser: a) tilberedning av malmstørrelse gjennom malmklassifisering med hensyn til partikkelstørrelse, hvor partikler lik eller mindre enn 1 mm blir beholdt fra malm- partikkelfraksjoneringsprosessen slik at det oppnås størrelse lik eller mindre enn 1 mm, samt knusing av disse partikler, b) tilsetning av flussmiddel, c) tilsetning av agglomérant, d) pelletering som resulterer i råpelleter, e) varmebehandling gjennom tørking, forvarming og oppvarming av rå pelletene.
Patent NO-20130060-A1 (NO)
Title: Tilbaketrekkbar bronnreservesammenstilling for periferisk tetningsstotte
Inventor: DOANE JAMES C
IPC: E21B33/128
Filed: 2013-01-11
Abstract: Kileformede elementer danner en ringstruktur som kan øke i diameter for et grep ved å benytte relativ aksial bevegelse av tilstøtende segmenter. Den tilstøtende tetning er ytterligere atskilt fra adkomst til kantene av de tilstøtende segmenter som beveger seg relativt ved ringsegmenter festet til den brede dimensjon av segmentene som vender mot tetningen. Ringsegmentene beveger seg ut med kileelementene til hvilke de er festet slik at i den satte posisjon av tetningen er det en forsterket barriere mot det omgivende rør med ringsegmentene. Ringsegmentene blokkerer videre adkomst til tetningen under kompresjonsbelastning mot grenseflatelokaliseringene mellom de kileformede elementer slik at deres relative aksiale bevegelse ikke fanger et parti av tetningen og initierer sprekker i tetningen som kan føre til lekkasje forbi tetningen.
Patent NO-20130721-A1 (NO)
Title: Okt oljeutvinning i reservoarer med lav permeabilitet
Inventor: ZHOU DENGEN
IPC: E21B43/22
Filed: 2013-05-23
Abstract: En fremgangsmåte for å øke hydrokarbonutvinning i reservoarer med lav permeabilitet omfatter først tilveiebringelse av et undergrunnsreservoar som inneholder en eller flere hydrokarboner og vann samt et brønnhull i fluidkommunikasjon med undergrunnsreservoaret. Deretter injiseres en hovedsakelig vannfri sammensetning inn i reservoaret gjennom brønnhullet. Den hovedsakelig vannfrie sammensetningen omfatter karbondioksid og ett eller flere overflateaktive stoffer. Sammensetningen er egnet til å danne et skum ved kontakt med vannet inne i reservoaret. Fremgangsmåten resulterer ofte i redusert korrosjon i brønnhullet og hydratdannelse, redusert fingering i reservoaret og forbedret karbondioksidfeiingseffektivitet i forhold til tradisjonelle fremgangsmåter.
Patent NO-20171537-A1 (NO)
Title: Fremgangsmåte for justering
Inventor: NGHIEM BERNARD
IPC: C23C14/54
Filed: 2017-09-26
Abstract: Fremgangsmåte for kalibrering av en anordning for vakuum-deponering eller-etsing av et belegg sammensatt av en stabel av tynne referansefilmer på et substrat, særlig glass.
Patent PE-96298-A1 (PE)
Title: Lamina no tejida que contiene una pelicula adelgazada por estiramiento y reforzada con adhesivo
Inventor: MCCORMACK ANN LOUISE
IPC: D04H1/58
Filed: 1997-07-14
Abstract: QUE COMPRENDE: A) UNA PRIMERA CAPA FIBROSA NO TEJIDA QUE TIENE UNA SUPERFICIE; B) UNA CAPA DE PELICULA, QUE TIENE UNA PRIMERA SUPERFICIE, ORIENTADA EN UNA DIRECCION DEL ESTIRAMIENTO CON UN GROSOR EFECTIVO DE 0,6 MILESIMAS DE PULGADA O MENOS; Y FORMADA A PARTIR DE UNA MEZCLA QUE INCLUYE, SOBRE UN PORCENTAJE DE PESO DE RESMA BASADO EN EL PESO DE RESMA DE LA CAPA DE PELICULA, ALREDEDOR DE 30% A 70% DE UN PRIMER POLIMERO DE POLIOLEFINA, DE 70% A 30% DE UN RELLENO, Y ALREDEDOR DE 0% A 20% DE UN SEGUNDO POLIMERO DE POLIOLEFINA, ADEMAS DICHA CAPA DE PELICULA TIENE UNA VELOCIDAD DE TRANSMISION DE VAPOR DE AGUA DE AL MENOS 300 g/m�/24 h; Y C) UN PATRON DE AREAS ADHESIVAS, APLICADAS A DICHA PRIMERA SUPERFICIE DE LA CAPA DE PELICULA, QUE TIENE UNA CANTIDAD AGREGADA DE ADHESIVO DE 0,1 g/m� A 20 g/m�; UN AREA DE UNION DE ALREDEDOR DE 5% A 50% POR AREA DE UNIDAD DE LA SUPERFICIE DE DICHA CAPA DE PELICULA; Y UNA SEPARACION MAXIMA ENTRE LAS AREAS ADHESIVAS, EN UNA DIRECCION GENERALMENTE PARALELA A LA DIRECCION DEL ESTIRAMIENTO, DE ALREDEDOR DE ALREDEDOR DE 1 PULGADA O MENOS. LA SUPERFICIE DE LA CAPA FIBROSA NO TEJIDA ESTA ADHERIDA A LA SUPERFICIE DE LA CAPA DE PELICULA POR MEDIO DEL PATRON DE AREAS ADHESIVAS QUE SE APLICA PARA FORMAR UN LAMINADO. TIENE USO EN ARTICULOS ABSORBENTES PARA EL CUIDADO PERSONAL, ARTICULOS DE TELA, Y SIMILARES
Patent PE-20000065-A1 (PE)
Title: Combinaciones de inhibidor de ace-inhibidor de mmp
Inventor: PETERSON JOSEPH THOMAS
IPC: A61P9/00
Filed: 1998-12-22
Abstract: SE REFIERE A UNA COMPOSICION FARMACEUTICA QUE COMPRENDE a)UN INHIBIDOR DE ENZIMA CONVERTIDORA DE ANGIOTENSINA (ACE) TAL COMO CAPTOPRIL, ENALAPRIL, ENALPRILAT, LISINOPRIL, RAMIPRIL, ZOFENOPRIL, TRANDOLAPRIL, TEMOCAPRIL, CERANAPIL, ALACEPRIL, DELAPRIL, PENTOPRIL, QUINAPRIL, QUINAPRILAT, MOEXIPRIL, RENTIAPRIL, DUINAPRIL, SPIRAPRIL, CILAZAPRIL, PERINDOPRIL, FOSINOPRIL; b)UN INHIBIDOR DE METALOPROTEASA DE MATRIZ TAL COMO 4-(4`-CLOROBIFENIL-4-IL)-4-HIDROXIMINO-BUTIRICO, ACIDO 2-(4'-BROMOBIFENIL-4-SULFONILAMINO)-3- METIL-BUTIRICO O UN COMPUESTO DE FORMULA I, DONDE A ES FENILO, GRUPO a; Y ES CH o N; R1 ES ALQUILO, ARILO, HALO, AMINO OPCIONALMENTE SUSTITUIDO, ALCOXI; R2 ES CARBOXIALQUILCETONA U OXIMA, CARBOXIALQUILSULFONAMIDA. LA COMPOSICION TIENE EFECTO DE RETARDAR Y REVERTIR EL PROCESO DE FIBROSIS, DILATACION VENTRICULAR, INSUFICIENCIA CARDIACA Y PUEDE SER UTIL PARA EL TRATAMIENTO DE FIBROSIS CARDIOVASCULAR, CARDIOMIOPATIA DILATADA, ESCLEROSIS DE VALVULAS CARDIACAS, FIBROSIS DE VALVULAS CARDIACAS, ENFERMEDAD CARDIACA REUMATICA, TRASTORNOS ARTERIOSCLEROTICOS, FIBROSIS PULMONAR, SINDROME DE FATIGA RESPIRATORIA DE ADULTOS, TRASTORNOS INFLAMATORIOS, ESPONDILITIS ANQUILOSANTE, GLOMERULO ESCLEROSIS, ADHERENCIAS DEL PERITONEO
Patent PE-34095-A1 (PE)
Title: Proteccion contra la decoloracion del tinte por los agentes liberadores de sucio
Inventor: MARIN-CARRILLO EDGAR M
IPC: C11D3/37
Filed: 1994-11-11
Abstract: SE REFIERE A UN AGENTE QUE AL DEPOSITARSE SOBRE UNA TELA EVITA LA ADHERENCIA DE MANCHAS Y QUE PUEDE ABSORBER LA LUZ EN LA LONGITUD DE ONDA DE 200 nmA 700 nm EVITANDO LA DECOLORACION DE LAS TELAS CUANDO SE EXPONEN A LA LUZ DEL SOL. EL AGENTE PUEDE SER UN POLIMERO FORMADO POR: 1) 1 o 2 UNIDADES SULFONADAS DE EXTREMO CUBIERTO DE POLI-ETOXI/PROPOXI, DE FORMULA (MO3S)(CH2)m(CH2CH2O)(RO)n, DONDE M ES UN CATION COMO SODIO O TETRALQUILAMONIO, m ES 0 o 1, R ES ETILENO, PROPILENO, n VARIA DE 0 A 2; 2) DE 0,5 A 66 UNIDADES SELECCIONADAS DEL GRUPO DE: A)OXIETILENOXI, B) OXI-1,2-PROPILENOXI, C) POLI(OXIETILEN)OXI, D) TEREFTALOILO, E)5-ISOSULFOISOFTALOILO DE FORMULA -(O)C(C6H3)(SO3M)C(O)-, DONDE M ES UN CATION
Patent PE-9296-A1 (PE)
Inventor: PETER JAMES DUNN
IPC: C07B51/00
Filed: 1994-11-28
Abstract: The present invention relates to a crystalline, alpha-polymorphic form of a compound of formula (I) and to processes for the preparation of, to intermediates used in the preparation of, to compositions containing and to uses of, the alpha-polymorphic form.
Patent PL-227233-A1 (PL)
IPC: C08K3/34
Filed: 1980-10-11
Abstract: 1. A process for stabilizing polyvinyl chloride molding compounds, characterized in that a) 0.2 to 5 parts by weight of a synthetic, crystalline, finely divided sodium alumosilicate containing 13 to 25% by weight bound water and having the composition - based on the anhydrous form - 0.7-1.1Na2 O .Al2 O3 . 1.3-2.4SiO2 (zeolite 4A), b) 0.05 to 1.5 part by weight of the calcium salt of C8 -C22 fatty acids, c) 0.05 to 0.5 part by weight of the zinc salt of C8 -C22 fatty acids, d) 0.2 to 2.0 parts by weight of partial esters of C8 -C22 fatty acids and polyols containing 2 to 6 carbon atoms and 2 to 6 hydroxyl groups which, on average, contain at least one free polyol hydroxyl group per molecule and have OH values of 140 to 580, e) 0.1 to 1.0 part by weight of thioglycolic acid esters of polyols containing 2 to 6 hydroxyl groups and/or thioglycolic acid esters of monofunctional C8 -C22 alcohols are incorporated in the molding compounds to 100 parts by weight polyvinyl chloride.
Patent PL-278569-A1 (PL)
Title: Method of moulding a white cheese block from prepared curds and apparatus therefor
Inventor: BARLOW PETER B
IPC: A01J25/12
Filed: 1989-03-31
Abstract: A curd and whey mixture is drained of loose whey on a conveyor and the dry curd fed into the top of a tubular perforated column (4) maintained under sub-atmospheric pressure to form a pillar of curd. A mass of curd severed from the lower end of the pillar is deposited in a mould (14) mounted on a turntable (13) rotatable to index the mould in succession at six pressing stations at each of which the curd is compressed for 45-120 seconds at a pressure of at least 4 bar in order to form a block of cheese with a rind firm enough to permit handling of the cheese block after ejection from the mould. At the first pressing station the curd is subjected to a sub-atmospheric pressure of -0.9 to -1.0 bar prior to compression. After the cheese block is ejected from the mould, the turntable returns the empty mould to the column for reception of another mass of curd.
Patent PL-291959-A1 (PL)
Title: Exchangeable wearing machine component
Inventor: GSTETTNER MANFRED
IPC: B02C17/22
Filed: 1991-10-07
Abstract: The present invention relates to a replaceable wear part for protecting components from abrasive wear. According to the invention, provision is made for the wear part (1) to be formed from a base part (2) made of tough material and a supporting part (3) made of a material possessing a high wear resistance, the base part (2) and the supporting part (3) being joined to one another over their surface and the base part (2) having a fastening element (4). 
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Patent PL-296771-A1 (PL)
Title: Apparatus for separating powdered solid material and vertical furnace for firing such materials
Inventor: JORGET SERGE
IPC: F27B1/20
Filed: 1992-11-27
Abstract: The present invention relates to a device for distributing solid pulverulent materials, transported pneumatically, in an annular section of large diameter, in particular for feeding vertical calcining kilns. 
<??>The device to which the invention relates is characterised in that it comprises an annular chamber (32) with an axis which is vertical or close to vertical, which is closed at its upper end and the section of which, in a plane perpendicular to the axis of the device, has an area which is constant in its upper part and then decreases progressively as far as its lower end where an annular outlet opening (28) is provided, and in that the pipe (40) for admission of the flow of gas transporting the solid materials is connected to the upper part of said chamber so that said flow penetrates the latter in an approximately radial direction. 
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Patent PL-297188-A1 (PL)
Title: Process and apparatus for processing a stock consisting of at least two different thermo-plastic materials and novel homogenous thermoplastic material obtained thereby
Inventor: MARIANI GIORDANO
IPC: B29B7/44
Filed: 1992-04-08
Abstract: The device comprises a cylindrical chamber (2) fitted with a loading hopper (4) and with a discharging well (5). A rotor (6) fitted with blades (31, 32) is driven in rotation by an electric motor (7) via a clutch (18). The chamber (2) and the bearings (22) of the rotor (6) are surrounded by a protective shroud (26). In the chamber (2), a mixture containing at least two different thermoplastic polymers is subjected to stirring (agitation) by the blades (31, 32) of the rotor (6), and this treatment is stopped after the appearance of a rapid increase in the energy consumed. A homogeneous thermoplastic is thus obtained. <IMAGE>
Patent PL-298988-A1 (PL)
Title: Novel derivatives of acetic acod, pharmaceutical preparation, method of obtaining such derivatives and method of obtaining initial compounds
Inventor: KARANEWSKY DONALD S
IPC: A61K38/55
Filed: 1993-05-18
Abstract: Compounds of the formula <CHEM> are disclosed as possessing inhibotory activity against angiotensin converting enzyme (ACE) and neutral endopeptidase (NEP) and thus being useful as cardiovascular agents. Processes for preparing these compounds are also disclosed.
Patent PL-305106-A1 (PL)
Title: Element made of safe glass exhibiting thermally insulating properties
Inventor: KUNERT HEINZ
IPC: B32B5/24
Filed: 1994-01-11
Abstract: PCT No. PCT/EP94/00068 Sec. 371 Date Sep. 12, 1994 Sec. 102(e) Date Sep. 12, 1994 PCT Filed Jan. 11, 1994 PCT Pub. No. WO94/15784 PCT Pub. Date Jul. 21, 1994.The glazing element in accordance with the invention comprises in its simplest form a pane and a textile spacer fabric arranged at the covering surface of the pane. The spacer fabric comprises at least two covering layers, which are connected together by rib fibers extending approximately transversely in relation to the panes. The glazing element in accordance with the invention possesses thermal insulating properties and may be utilized as safety glass, more particularly for roofs or overhead glazing arrangements.
Patent PL-315913-A1 (PL)
Title: Multicomponent system for modifying, decomposing or bleaching cellucotton, materials containing ir or similar materials and method of implementing this system
Inventor: CALL HANS-PETER
IPC: C08H7/00
Filed: 1995-12-15
Abstract: System for transforming, degrading or bleaching lignin, lignin-contg. materials or similar materials, comprises a poly-component system comprising: (a) opt. ≥ 1 oxidation catalyst; (b) ≥ 1 oxidising agent; (c) ≥ 1 mediator selected from hydroxylamines, hydroxylamine derivs., hydroxamic acids, hydroxamic acid derivs. and aliphatic, cycloaliphatic, heterocyclic and aromatic cpds. which contain ≥ 1 N-hydroxy, oxime, N-oxy or N,N-dioxy function; (d) opt. ≥ 1 co-mediator selected from aryl-substd. alcohols, carbonyl cpds., aliphatic ethers, phenol ethers and alkenes; and (e) a small amt. of a free amine of one of the mediators used.
Patent PL-323034-A1 (PL)
Title: Covering materials
Inventor: COSTI ALBERT
IPC: E04D3/40
Filed: 1997-11-07
Abstract: The lightweight corrugated roofing material, e.g. of a bitumen-impregnated cellulose material, a plastic such as PVC or of steel, is designed to be used on its own or as a support for flat or channelled tiles, and has corrugations (2) with transverse recesses (3) at intervals for the tiles to engage with. The amplitude and pitch of the corrugations are in a ratio of between 1 : 1 and 1 : 2, and the upper surfaces of their crests, which are slightly flattened, are roughened, having projections between 0.1 and 0.9 mm high and at a rate of between 1 and 100 per sq cm.
Patent PL-323457-A1 (PL)
Title: Vaccine composition containing polyribositoloribitol phosphate and method of obtaining same
Inventor: ARMINJON FRANCOIS
IPC: A61P31/04
Filed: 1996-05-24
Abstract: Vaccine compositions are disclosed which comprise at least one antigen formed by the capsular polysaccharide of Haemophilus influenzae type b or high molecular weight polyribosylribitol phosphate coupled to tetanus anatoxin.
Patent PL-334239-A1 (PL)
Title: Method of and apparatus for mechanically jointing together various components
Inventor: ENGLER MARKUS
IPC: B21D39/03
Filed: 1998-10-14
Abstract: A mechanical assembly process and device for sheet metal parts (30) are disclosed. The material of the metal sheets is displaced and upset out of a sheet metal plane by a forming energy applied by means of a tool set comprising at least one male die (6) and a female mould (4) fitted with an anvil. The forming energy is generated by impact in the form of short, successive strikes.
Patent PL-339121-A1 (PL)
Title: Top blade of shears use in making expanded metal net
Inventor: BRUENSCH JOACHIM
IPC: B21D31/04
Filed: 2000-03-21
Abstract: The upper knife (1) cuts the mesh, producing junction points for easier adaptation to irregular shapes. The upper knife has cutting teeth enclosing greater and lesser angles. The apex (4) of the greater angle ( alpha ) between one of the cutting teeth in the cutting direction lies deeper than the apex (5) of the lesser angle ( beta ) between the other cutting teeth.   - - L
Patent PL-340911-A1 (PL)
Title: Package for tobacco articles
Inventor: PARKER MICHAEL PATRICK
IPC: B60B37/10
Filed: 1998-12-02
Abstract: A rigid of smoking articles is made to have improved shelf life and to be resealable. A barrier material is sealed around the rigid pack. The rigid pack has a potential or actual access aperture extending from a top face into a major face. The barrier material has a line of severance or weakening defining a flap, which is in register with the potential or actual access aperture. Over the flap is a layer which overlaps it on each severable side with a portion having permanently-tacky adhesive. A non-adhered pull tab is preferably provided on the layer. To open the pack the user lifts the flap and if necessary the access aperture. After removal of a smoking article the gap in the barrier layer is reclosed and released by the repositioning of the adhesive layer, carrying with it the flap of barrier material. A machine for assembling the pack is also disclosed.
Patent PL-345167-A1 (PL)
Title: Powder coating compositions
Inventor: RING JOHN
IPC: C09D167/00
Filed: 1999-07-02
Abstract: Powder coating compositions incorporate, by dry blending, a wax-coated silica additive in finely divided form. Further additives that may be incorporated by dry blending include aluminum oxide and/or aluminum hydroxide. The compositions offer advantages, for example, in terms of fluidity and in terms of first-time deposition of fine particles.
Patent PL-352070-A1 (PL)
Title: Glycoseaminoglycates having the average molecular weight equal to 2400 and used for treatment to senile dementi
Inventor: DE AMBROSI LUIGI
IPC: A61K31/726
Filed: 2000-05-12
Abstract: The present invention relates to the use of glycosaminoglycans having an average/molecular weight of 2,400 D for the preparation of pharmaceutical compositions suitable for the treatment of senile dementia, in particular for the treatment of Alzheimer's disease or SDAT (Senile Dementia Alzheimer's Type) and of the cerebral neurological lesions from ictus and from traumas.
Patent PL-358833-A1 (PL)
Title: Arrangement for connecting planar components
Inventor: KNAUSEDER FRANZ
IPC: E04F15/04
Filed: 2001-06-01
Abstract: A covering comprises panels (9, 9') having jointing elements (91, 92) on the side provided with adhesive (96) which may be transformed from a passive to an active state. Independent claims are also included for: (i) a process for the production of panels (100, 100') for coverings or cladding, preferably for floor covering, by application by co-extrusion of an adhesive bead (96) and/or a bead of an adhesive polymer core (961), activated by liquid, preferably water, encased in a sheath (962) of a water-, moisture and/or solvent resistant and impermeable, flexible polymer preferably a synthetic polymer, preferably based on polyvinyl acetate or a biopolymer onto side grooves (92), preferably onto at least one of the side faces (921, 922) and/or the tongues (91), preferably onto at least one of the side faces (911, 912) and (ii) a machine (100) for the application of a core (961) and sheath (962) adhesive bead by co-extrusion via a core nozzle (102) and concentrically arranged ring nozzle (212) onto the groove and/or tongue of a panel.
Patent PL-362576-A1 (PL)
Title: Indazolyl-substituted pyrroline compounds as kinase inhibitors
Inventor: ZHANG HAN-CHENG
IPC: A61P17/00
Filed: 2001-12-06
Abstract: The present invention is directed to novel indazolyl-substituted pyrroline compounds of Formula (I): useful as kinase or dual-kinase inhibitors, methods for producing such compounds and methods for treating or ameliorating a kinase or dual-kinase mediated disorder.
Patent PL-362673-A1 (PL)
Title: Corkscrew for champagne, sparkling wine cider, prosecco, and the like
Inventor: KRAMER RALPH
IPC: B67B7/06
Filed: 2003-10-07
Abstract: A bottle opener removes crown corks from e.g. sparkling wine bottles. The opener has a handle (3) with two pivoting (5, 7) arms which are located on opposite sides of the bottle neck. Together the two arms form an essentially bell-shaped housing around the bottleneck and crown cork, with tongues (8, 10) engaging between the crown and bottle rim.
Patent PL-362933-A1 (PL)
Title: Method and device for producing a composite yarn
Inventor: BOISSONNAT PHILIPPE
IPC: D01D5/16
Filed: 2001-09-26
Abstract: A process for manufacturing a composite yarn including continuous glass filaments intermingled with continuous organic thermoplastic filaments and an apparatus for implementing the process. The continuous glass filaments come from a bushing and are separated into plural sheets. The continuous organic thermoplastic filaments come from a spinning head and are separated into plural sheets. The thermoplastic filaments are thrown into the glass filaments so as to mingle them, in a ratio of at least one sheet of thermoplastic filaments in each sheet of glass filaments, the mingled filaments then being gathered into at least one composite yarn.
Patent PL-365578-A1 (PL)
Title: Improvements in or relating to a nozzle arrangement
Inventor: LAIDLER KEITH
IPC: B05B15/02
Filed: 2001-05-10
Abstract: A nozzle arrangement which is suitable for use in the generation of a spray or aerosol and which is adapted for connection to a fluid supply, the nozzle arrangement including a fluid inlet through which fluid enters the arrangement from the fluid supply and fluid outlet through which the fluid is ejected from the nozzle arrangement, fluid inlet and fluid outlet being connected to a fluid flow passage through which, in use, fluid flows from the inlet to the outlet, wherein the nozzle arrangement includes control means provided in the passage which, in use, acts to modify the flow characteristics of the fluid in the fluid flow passage to effectively control fluid droplet size produced in the spray or aerosol by the nozzle arrangement.
Patent PL-366217-A1 (PL)
Title: Compositions for controlling scaling and completion fluids
Inventor: BENTON WILLIAM J
IPC: C09K8/528
Filed: 2001-07-10
Abstract: An aqueous-based composition containing cesium formate and at least one chelating agent is described. Methods of removing scaling deposits, which may include alkaline earth metal sulfates, present on surfaces, including porous media, such as alkaline earth metal sulfate buildup in a well bore, is also described, wherein the method includes contacting the alkaline earth metal sulfate with the compositions of the present invention to remove the scaling deposits. A completion fluid containing at least one alkali metal formate, at least one acid and/or at least one chelating agent, and optionally at least one surfactant or mutual solvent is also described. Methods of removing a filter cake from a well bore surface, which may include weighting agents such as calcium carbonate, is also described, wherein the method includes contacting the filter cake with the completion fluid of the present invention.
Patent PL-369547-A1 (PL)
Title: Valuable document
Inventor: PLASCHKA REINHARD
IPC: B42D25/29
Filed: 2002-12-12
Abstract: The invention relates to a data carrier printed with a tactile halftone image, a method for producing it and a printing plate suitable therefor.